import java.net.URLEncoder;

public class queryString {

  String query;

  public queryString(Object name, Object value) {

    query = URLEncoder.encode(name.toString()) + "=" + 
      URLEncoder.encode(value.toString());

  }
  
  public void add(Object name, Object value) {
  
      query += "&" + URLEncoder.encode(name.toString()) + "=" + 
        URLEncoder.encode(value.toString());
  
  }
  
  public String toString() {
    return query;
  }

}